If your cap and ball revolver is hitting to the side of your point of aim, the only fix is to install a new, dovetailed front sight.
I'll show that procedure here
1000 Man Shoot, A World Record Boycotted
TAB Episode 19: L2A3 Live Fire & Slow Motion
Year in review - New Handgun and Rifle
Swiss Straight Pulls: ZFK 55 scoped rifle, 7.5x55 GP11
Final 15 Minutes: Facebook Fake News & Constitutional Carry